Why do people seem to mean different things by “I want the pie” and “It is right that I should get the pie”?
These really are different statements. “I am entitled to fraction x of the pie” means more or less the same as “a fair judge would assign me fraction x of the pie”.
But a fair judge just means the judge has no personal relationship with any of the disputing parties and makes his decision based on some rational process, not arbitrarily. It isn’t necessarily true that there’s a unique solution that a fair judge would decide upon. One could say that whoever saw it first or touched it first is entitled to the whole pie, or that it should be divided strictly equally, or that it be divided on a need-based or merit-based, or he could even make the gods must be crazy/idiocy of Solomon solution and say it’s better that the pie be destroyed than allowed to exist as a source of dissent. In my (admittedly spotty) knowledge of anthropology, in most traditional pie-gathering societies, if three members of a tribe found a particularly large and choice pie they would be expected to share it with the rest of the tribe, but they would have a great deal of discretion as to how the pie was divided, they’d keep most of it for themselves and their allies.
This is not to say that morality is nothing but arbitrary social convention. Some sets of rules will lead to outcomes that nearly everyone would agree are better than others. But there’s no particular reason to believe that there could be rules that everyone will agree on, particularly not if they have to agree on those rules after the fact.
Why do people seem to mean different things by “I want the pie” and “It is right that I should get the pie”?
These really are different statements. “I am entitled to fraction x of the pie” means more or less the same as “a fair judge would assign me fraction x of the pie”.
But a fair judge just means the judge has no personal relationship with any of the disputing parties and makes his decision based on some rational process, not arbitrarily. It isn’t necessarily true that there’s a unique solution that a fair judge would decide upon. One could say that whoever saw it first or touched it first is entitled to the whole pie, or that it should be divided strictly equally, or that it be divided on a need-based or merit-based, or he could even make the gods must be crazy/idiocy of Solomon solution and say it’s better that the pie be destroyed than allowed to exist as a source of dissent. In my (admittedly spotty) knowledge of anthropology, in most traditional pie-gathering societies, if three members of a tribe found a particularly large and choice pie they would be expected to share it with the rest of the tribe, but they would have a great deal of discretion as to how the pie was divided, they’d keep most of it for themselves and their allies.
This is not to say that morality is nothing but arbitrary social convention. Some sets of rules will lead to outcomes that nearly everyone would agree are better than others. But there’s no particular reason to believe that there could be rules that everyone will agree on, particularly not if they have to agree on those rules after the fact.